Liquid purification or separation – With means to add treating material – Plural distinct separators
Reexamination Certificate
2006-07-13
2008-10-21
Lithgow, Thomas M (Department: 1797)
Liquid purification or separation
With means to add treating material
Plural distinct separators
C210S512100, C210S521000, C209S012100, C209S727000, C209S729000, C209S164000, C209S168000, C208S390000, C208S391000, C208S425000, C208S426000, C208S428000
Reexamination Certificate
active
07438807
ABSTRACT:
Discloses apparatus to perform a process to remove water and minerals from a bitumen froth output of a oil sands hot water extraction process. A bitumen froth feed stream is diluted with a solvent and supplied to a primary inclined plate separator stage, which separates the bitumen into an overflow stream providing a bitumen product output from the circuit and a bitumen depleted underflow stream. A primary cyclone state, a secondary inclined plate separator stage and a secondary cyclone stage further process the underflow stream to produce a secondary bitumen recovery product stream and a recycle stream. The secondary bitumen recovery product stream is incorporated into and becomes part of the circuit bitumen product output stream. The recycle stream is incorporated into the bitumen froth feed stream for reprocessing by the circuit.
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pate
Garner William Nicholas
Madge Donald Norman
Strand William Lester
Knobbe Martens Olson & Bear LLP
Lithgow Thomas M
Suncor Energy Inc.
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